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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
To maintain a proper airtight seal
Reliable Performance: Built to withstand industrial-grade gas environments including natural gas
20" WC rating on your existing switch to ensure proper pressure differential matching
Precise Thermal Protection: Calibrated to open at exactly 135°F (57°C) to protect sensitive heater components and prevent hazardous operating conditions
the 767A-357 is the direct replacement model for the older 767A-303 ignitor
Watts 0590716 Air Vent To maintain a proper airtightThe Watts 0590716 (Series FV 4M1) is a heavy duty 1 4 inch automatic air vent designed for high performance hydronic heating systems. As the direct replacement for the discontinued 590715, this valve is engineered to purge entrapped air from hot or cold water distribution systems automatically. Built with a rugged brass body and cover, it features a high temperature resistant polyethylene float and a durable silicone rubber seal, making it fully